these headphones with the ZMF OVAL Lambskin earpads have the best bass extension I have ever heard, but I need to downsize my collection of 10+ headphones and these are a little too heavy for my head.

they are the Massdrop TH-X0 MK2 planar magnetic headphone modded by Modhouse Audio in April 2018 converted to Argon's, their signature sound, the ZMF OVAL Lambskin pads are preinstalled and mint condtion, purchased in June 2018. I am asking $180 shipped, thanks!